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authorMartin Uecker <muecker@gwdg.de>2021-01-04 22:53:58 +0100
committerMartin Uecker <muecker@gwdg.de>2021-01-04 22:53:58 +0100
commita000eb5918e09d28838ef572f4eea924d32db09b (patch)
tree7ffa0b66ff2da1be9bd8a77ebae3140ef8b5fcc3 /gcc
parentf262a3518877ccce9ed41b2e152c3a3564727bd6 (diff)
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C: Add test for incorrect warning for assignment of certain volatile expressions fixed by commit 58a45ce [PR98029]
2021-01-04 Martin Uecker <muecker@gwdg.de> gcc/testsuite/ PR c/98029 * gcc.dg/pr98029.c: New test.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/testsuite/gcc.dg/pr98029.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr98029.c b/gcc/testsuite/gcc.dg/pr98029.c
new file mode 100644
index 0000000..148f23c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr98029.c
@@ -0,0 +1,21 @@
+/* pr98029 */
+/* { dg-do compile } */
+/* { dg-options "-Wunused" } */
+
+double f2 (void)
+{
+ volatile double d;
+ int i;
+
+ for (d = 2.0, i = 0; i < 5; i++, d *= d) /* { dg-bogus "right-hand operand of comma expression has no effect" } */
+ ;
+
+ return d;
+}
+
+int g(void)
+{
+ volatile int x;
+ (x = 1, (void)1); /* { dg-bogus "right-hand operand of comma expression has no effect" } */
+ return x;
+}